HCM Cloud Arbitrary File Read Scanner

HCM Cloud is a professional human resources platform used by organizations to manage their workforce in the cloud. It offers features such as employee self-service, recruitment management, payroll, and performance evaluation. The platform is favored by companies looking to streamline their HR processes and leverage cloud technologies. As cloud adoption grows, the importance of securing cloud-based HR systems becomes increasingly critical. HCM Cloud is designed to provide comprehensive HR solutions while ensuring compliance with organizational and regulatory requirements. Its focus on security ensures that sensitive HR information is protected from unauthorized access.

The arbitrary file read vulnerability in HCM Cloud allows attackers to access files on the server without permission. This vulnerability can be exploited to read sensitive information from the file system, including configuration files, passwords, and other confidential data. Unauthorized file access can lead to further exploitation, compromising the entire HR platform. Ensuring proper permissions and validations for file access is crucial in safeguarding against such vulnerabilities. The detection of this vulnerability is essential for maintaining the security and integrity of HR data. Proper patching and system updates are required to mitigate this risk effectively.

The vulnerability occurs due to inadequate validation of user inputs in the file download functionality, allowing attackers to manipulate file paths. An example of a vulnerable endpoint is '/api/model_report/file/download?index=' where user-provided paths can be crafted to read unintended files. Additionally, the lack of proper access controls permits unauthorized users to access restricted files. The absence of correct authentication mechanisms exacerbates the issue, opening doors to potential data breaches. The template detects patterns in HTTP response confirming the presence of sensitive file content. Proper remediation involves implementing stringent access controls and input validation techniques.

Exploiting this vulnerability can result in significant data breaches, exposing sensitive employee information stored in the HR cloud platform. Attackers can gain insights into the system configuration, potentially leading to further exploits. The unauthorized access to confidential data can result in reputation damage and financial loss for organizations. Regulatory compliance could also be jeopardized, inviting legal consequences. Employees' privacy and the integrity of HR operations are at stake if this vulnerability goes unpatched. Ensuring robust security measures are in place is critical to prevent exploitation and mitigate associated risks.

REFERENCES

• https://mp.weixin.qq.com/s/nvV7_ZGDqSUZJ5FNEWDhKw
• https://github.com/wy876/POC/blob/main/%E6%B5%AA%E6%BD%AE%E4%BA%91/HCM-Cloud%E4%BA%91%E7%AB%AF%E4%B8%93%E4%B8%9A%E4%BA%BA%E5%8A%9B%E8%B5%84%E6%BA%90%E5%B9%B3%E5%8F%B0download%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md